def build_model(self):
"""Create a generator and a discriminator."""
if self.dataset in ['CelebA', 'RaFD', 'MNIST']:
self.G = Generator(self.g_conv_dim, self.c_dim + self.con_dim,
self.image_size, self.op_channels)
self.FE = FE(self.image_size, self.d_conv_dim, self.op_channels)
self.D = Discriminator(self.image_size, self.d_conv_dim,
self.c_dim)
self.Q = Q(self.image_size, self.d_conv_dim, self.con_dim)
elif self.dataset in ['Both']:
self.G = Generator(self.g_conv_dim, self.c_dim + self.c2_dim + 2,
self.g_repeat_num) # 2 for mask vector.
self.D = Discriminator(self.image_size, self.d_conv_dim,
self.c_dim + self.c2_dim, self.d_repeat_num)
self.g_optimizer = torch.optim.Adam([{
'params': self.G.parameters()
}, {
'params': self.Q.parameters()
}], self.g_lr, [self.beta1, self.beta2])
self.d_optimizer = torch.optim.Adam([{
'params': self.D.parameters()
}, {
'params': self.FE.parameters()
}], self.d_lr, [self.beta1, self.beta2])
# self.print_network(self.G, 'G')
# self.print_network(self.D, 'D')
self.G.to(self.device)
self.D.to(self.device)
self.FE.to(self.device)
self.Q.to(self.device)
def __init__(self):
self.V=V(n_state).to(device)
self.target_V=V(n_state).to(device)
self.policy=Actor(n_state,max_action).to(device)
self.Q=Q(n_state,n_action).to(device)
self.optimV=th.optim.Adam(self.V.parameters(),lr=lr)
self.optimQ=th.optim.Adam(self.Q.parameters(),lr=lr)
self.optimP=th.optim.Adam(self.policy.parameters(),lr=lr)
self.memory=replay_memory(memory_size)
def epsilon_greedy(s, Q=Q, epsilon=epsilon):
# torch expects FloatTensors, so we use `.float()`
s = torch.from_numpy(s).float()
s = Variable(s, volatile=True).cuda()
if random.random() <= epsilon:
a = env.action_space.sample()
else:
a = int(Q(s).max(0)[1])
return a
def __init__(self, s_size, a_size, random_seed):
"""Initialize an Agent object.
Params
======
s_size (int): dimension of each state (s)
a_size (int): dimension of each action (a)
random_seed (int): random seed
"""
self.s_size = s_size
self.a_size = a_size
self.random_seed = random.seed(random_seed)
# Q-Network
self.q = Q(s_size, a_size, random_seed).to(device)
self.q_target = Q(s_size, a_size, random_seed).to(device)
self.optimizer = optim.Adam(self.q.parameters(), lr=LR)
# Replay memory
self.memory = Memory(a_size, BUFFER_SIZE, BATCH_SIZE, random_seed)
# Initialize time step (for updating every UPDATE_EVERY steps)
self.t_step = 0
def __init__(self, side, checkpoint_name, initialization_checkpoint):
self.side = side
self.checkpoint_name = checkpoint_name
self.sess = tf.Session()
with tf.variable_scope("model_" + checkpoint_name,
reuse=tf.AUTO_REUSE) as scope:
self.state_placeholder = tf.placeholder(tf.int32, shape=(9, 3))
self.next_state_placeholder = tf.placeholder(tf.int32,
shape=(9, 3))
self.reward_placeholder = tf.placeholder(tf.int32)
self.soft_tensor, self.update_op, self.loss_op, self.reward_op = Q(
self.state_placeholder, self.next_state_placeholder,
self.reward_placeholder)
self.saver = tf.train.Saver()
if not initialization_checkpoint:
self.sess.run(tf.global_variables_initializer())
else:
self.saver.restore(self.sess, "ckpt/" + initialization_checkpoint)
def __init__(self, state_size, action_size, max_tau=5):
self.max_tau = max_tau
self.iterations = 3
self.state_size = state_size
self.action_size = action_size
self.goal_size = state_size
self.lr = 0.001
self.batch_size = 128
self.episodes = 1000
self.epsilon = 1.0
self.epsilon_min = 0.01
self.epsilon_decay = 0.999
self.model = Q(self.state_size + self.goal_size + self.tau_size,
action_size, self.lr)
self.optimizer = optim.Adam(self.model.parameters(), lr=self.model.lr)
self.loss = nn.SmoothL1Loss()
#self.loss = nn.MSELoss()
self.memory = deque(maxlen=2000)
self.k = 4
self.n = 2
def __init__(self,
gamma,
alpha,
epsilon,
epsilon_min,
epsilon_decay,
game="CartPole-v1",
mean_bound=5,
reward_bound=495.0,
save_model=10):
# Environment variables
self.game = game
self.env = gym.make(self.game)
self.num_states = self.env.observation_space.shape[0]
self.num_actions = self.env.action_space.n
# Agent variables
self.alpha = alpha
self.gamma = gamma
self.model = Q(self.num_actions, self.alpha, self.gamma)
self.save_model = save_model
self.epsilon = epsilon
self.epsilon_min = epsilon_min
self.epsilon_decay = epsilon_decay
self.mean_bound = mean_bound
self.reward_bound = reward_bound
# File paths
dirname = os.path.dirname(__file__)
self.path_model = os.path.join(dirname, "../models/q.pickle")
self.path_plot = os.path.join(dirname, "../plots/q.png")
# Load model, if it already exists
try:
self.model.load(self.path_model)
except:
print("Model does not exist! Create new model...")
import torch.nn.functional as F
import torch.nn.init as init
import torch.optim as optim
import torchvision.datasets as dset
import torchvision.transforms as transforms
from torch import nn
from torch.utils.data import DataLoader
from args import args
from env import env
from exploration import decay_exploration, epsilon, epsilon_greedy
from model import Q
from replay_buffer import replay_buffer
from train import criterion, train
optimizer = optim.Adam(Q.parameters(), lr=args.lr)
# TODO wrap data in dataset
for i in range(args.iterations):
done = False
s = env.reset() # TODO fold into rollout
while not done:
epsilon = decay_exploration(i, epsilon)
a = epsilon_greedy(s, epsilon=epsilon)
succ, r, done, _ = env.step(a)
def train(iterations=10000,
batch_size=100,
sample_interval=5,
save_model_interval=100,
train_D_iters=1,
train_G_iters=3,
D_lr=0.0001,
G_lr=0.0001,
betas=(0.5, 0.99),
img_dir='./info_imgs',
model_dir='./models'):
imgs, digits, test_img, test_digits = load_mnist()
dataset = Dataset(imgs, digits)
loader = DataLoader(dataset, batch_size=batch_size, shuffle=True)
#dataset = Dataset(test_img, test_digits)
#test_loader = DataLoader(dataset,batch_size=batch_size, shuffle=False)
if torch.cuda.is_available:
print(f"Using GPU {torch.cuda.current_device()}")
device = "cuda"
else:
print("Using CPU...")
device = "cpu"
generaotor, discriminator, front, qq, encoder = G(), D(), FrontEnd(), Q(
), E()
generaotor = generaotor.to(device).apply(weights_init)
discriminator = discriminator.to(device).apply(weights_init)
qq = qq.to(device).apply(weights_init)
encoder = encoder.to(device).apply(weights_init)
front = front.to(device).apply(weights_init)
opt_G = torch.optim.Adam([{
"params": generaotor.parameters()
}, {
"params": qq.parameters()
}, {
"params": encoder.parameters()
}],
lr=G_lr,
betas=betas)
opt_D = torch.optim.Adam([{
"params": discriminator.parameters()
}, {
"params": front.parameters()
}],
lr=D_lr,
betas=betas)
CELoss_D = nn.CrossEntropyLoss(
weight=torch.FloatTensor([1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1])).to(device)
CELoss_G = nn.CrossEntropyLoss(weight=torch.FloatTensor(
[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 20])).to(device)
CELoss_Q = nn.CrossEntropyLoss().to(device)
CosineLoss = nn.CosineEmbeddingLoss().to(device)
real_x = torch.FloatTensor(batch_size, 1, 32, 32).to(device)
trg = torch.LongTensor(batch_size).to(device)
label = torch.FloatTensor(batch_size, 1).to(device)
noise = torch.FloatTensor(batch_size, 54).to(device)
c = torch.FloatTensor(batch_size, 10).to(device)
v_target = torch.LongTensor(batch_size, 64).to(device) # For Q
real_x = Variable(real_x)
noise = Variable(noise)
c = Variable(c)
trg = Variable(trg, requires_grad=False)
label = Variable(label, requires_grad=False)
v_target = Variable(v_target, requires_grad=False)
for epoch in range(iterations):
for step, [batch_x, batch_target] in enumerate(loader):
bs = batch_x.size(0)
# train D
#==========
# real
opt_D.zero_grad()
real_x.data.copy_(batch_x)
trg.data.copy_(batch_target)
fe1 = front(real_x)
real_pred = discriminator(fe1)
real_loss = CELoss_D(real_pred, trg)
real_loss.backward()
#fake
real_x.data.copy_(batch_x)
v = encoder(real_x)
z, idx = noise_sample(c, noise, v, bs)
fake_stroke = generaotor(z)
fake_x = fake_stroke + real_x
fake_x = fake_x.clamp(max=1, min=0)
fe2 = front(fake_x.detach())
fake_pred = discriminator(fe2)
trg.data.fill_(10)
if epoch > 0:
ignore_rate = 0.01
else:
ignore_rate = 1
fake_loss = CELoss_D(fake_pred, trg) * ignore_rate
fake_loss.backward()
D_loss = real_loss + fake_loss
#D_loss.backward()
opt_D.step()
# train G, Q, E
#===============
#train G
opt_G.zero_grad()
fe = front(fake_x)
fake_pred = discriminator(fe)
trg.data.copy_(torch.LongTensor(idx))
reconstruct_loss = CELoss_G(fake_pred, trg)
# train Q
c_out, v_out = qq(fe)
class_ = torch.LongTensor(idx).to(device)
target = Variable(class_)
v_target.data.copy_(v)
# GQ Loss
q_c_loss = CELoss_Q(c_out, target)
q_v_loss = CosineLoss(v_out, v_target, label.data.fill_(1))
q_loss = q_c_loss + q_v_loss
G_loss = reconstruct_loss + q_c_loss + q_v_loss
G_loss.backward()
opt_G.step()
# accuracy
print(
f'Epoch: {epoch} | Dloss: {D_loss.data.cpu().numpy()} | QCloss: {q_c_loss.data.cpu().numpy()} | QVloss: {q_v_loss.data.cpu().numpy()} | reloss: {reconstruct_loss.data.cpu().numpy()}'
)
save_image(torch.cat((fake_x, fake_stroke, real_x), dim=0).data,
f'./{img_dir}/{epoch}.png',
nrow=20)
print(f"fake pred {np.argmax(fake_pred.data.cpu().numpy(),axis=1)}")
#print(f"Qpred {np.argmax(c_out[1].data.cpu().numpy())}")
#print(f"Origin {batch_target[1].data.cpu().numpy()} ToBe: {idx[0]}")
#save_image(real_x.data, f'./{img_dir}/{epoch}_R.png', nrow=10)
"""
dis_c.data.copy_(torch.Tensor(one_hot))
print(np.shape(c1))
con_c = Variable(torch.rand(con_c.size())).cuda()
z = torch.cat([noise, dis_c, con_c], 1).view(-1, 74, 1, 1)
x_save = self.G(z)
save_image(x_save.data, os.path.join(args.path, 'generate.png'), nrow=10)
def parse():
parser = argparse.ArgumentParser(description='VAE MNIST Example')
parser.add_argument('--label', type=int, default=1, metavar='N',
help='The label you want to generate')
parser.add_argument('--num', type=int, default=1, metavar='N',
help='The number of image you want to generate')
args = parser.parse_args()
args.cuda = torch.cuda.is_available()
args.path = './infoGAN_result'
return args
if __name__ == '__main__':
args = parse()
fe = FrontEnd()
d = D()
q = Q()
g = G()
for i in [fe, d, q, g]:
i.cuda()
tester = Tester(g, fe, d, q, args)
tester.load()
tester.generate()
idx_2 = np.random.randint(2, size=bs)
c_2 = np.zeros((bs, 2))
c_2[range(bs), idx_2] = 1.0
# print('c_2: ', c_2)
dis_c.data.copy_(torch.Tensor(c))
con_c.data.copy_(torch.Tensor(c_2))
noise.data.uniform_(-1.0, 1.0)
print('noise: ', noise.shape)
z = torch.cat([noise, dis_c, con_c], 1).view(-1, 74, 1, 1)
return z, idx, idx_2
model_Q = Q().to(device)
model_FE = FrontEnd().to(device)
model_G = G().to(device)
model_D = D().to(device)
model_Q.load_state_dict(
torch.load(model_path + '/model_Q.pytorch', map_location='cpu'))
model_D.load_state_dict(
torch.load(model_path + '/model_D.pytorch', map_location='cpu'))
model_FE.load_state_dict(
torch.load(model_path + '/model_FE.pytorch', map_location='cpu'))
model_G.load_state_dict(
torch.load(model_path + '/model_G.pytorch', map_location='cpu'))
model_Q.eval()
model_D.eval()
transforms.Scale(img_size),
transforms.ToTensor(),
transforms.Normalize(mean=(0.5, 0.5, 0.5), std=(0.5, 0.5, 0.5))
])
train_dataset = dataset.MNIST(root='./data/',
train=True,
transform=transform,
download=True)
train_loader = torch.utils.data.DataLoader(dataset=train_dataset,
batch_size=batch_size,
shuffle=True)
gx = P()
gz = Q()
dxz = D()
g_param = chain(gx.parameters(), gz.parameters())
d_param = dxz.parameters()
g_optimizer = optim.Adam(g_param, glr, betas=(0.5, 0.999))
d_optimizer = optim.Adam(d_param, dlr, betas=(0.5, 0.999))
def to_variable(x):
if torch.cuda.is_available():
x = x.cuda()
return Variable(x)
env = gym.make('Pendulum-v0')
env.seed(1)
paddle.seed(1)
np.random.seed(1)
state_dim = env.observation_space.shape[0]
action_dim = env.action_space.shape[0]
max_action = float(env.action_space.high[0])
min_val = paddle.to_tensor(1e-7).astype('float32')
actor = Actor(state_dim, action_dim, max_action)
actor_optimizer = paddle.optimizer.RMSProp(parameters=actor.parameters(),
learning_rate=learning_rate)
Q_net = Q(state_dim, action_dim)
Q_optimizer = paddle.optimizer.RMSProp(parameters=Q_net.parameters(),
learning_rate=learning_rate)
critic = Critic(state_dim)
target_critic = Critic(state_dim)
target_critic.eval()
target_critic.load_dict(critic.state_dict())
critic_optimizer = paddle.optimizer.RMSProp(parameters=critic.parameters(),
learning_rate=learning_rate)
rpm = ReplayMemory(memory_size)
def train():
global epoch
total_reward = 0
random.seed(1388420)
algo_name = 'DQN-TAMER'
env = gym.make('LunarLander-v2')
max_ep = 1000
epsilon = .3
gamma = .99
human = Human(1388420)
alpha_q = 1
alpha_h = alpha_q
#Proportion of network you want to keep
tau = .995
q = Q(env)
q_target = deepcopy(q)
h = H(env)
h_target = deepcopy(h)
q_optim = torch.optim.Adam(q.parameters(), lr=1e-3)
h_optim = torch.optim.Adam(h.parameters(), lr=1e-3)
batch_size = 128
rb = ReplayBuffer(1e6)
h_batch = 16
human_rb = HumanReplayBuffer(1e6)
local_batch = History(1e3)